民用工程合同书(35)

32　provisional sums
　　"provisional sum'means a sum included in the contract and so designated in the bill of quantities for the execution of work or the supply of goods， materials， or services， or for contingen - cies， which sum may be used， in whole or in part， or not at all at the direction and discretion of the employer.
33　payment and retention
　　the contractor shall present his statement for monthly progress payment to the employer as early as possible after the end of each month.the statement 3hall be in the form approved by the employer and shall be accompanied by copies of records of measurement and calculations to support the amounts claimed. the employer after due verification of the statement of payment shall release for payment to the contractor the net amount after deduction of the retention amount specified. the final payment will be made on submission of the completion certificate.
　　the employer shall retain 10% of each monthly progress payment as retention money. in case the retention money is de - ducted for a period altogether more than 6 months， the contractor has the option to furnish a bank guarantee issued by a focal bank acceptable to the employer and in the form required by the employer in exchange for retention money which has accumulated for aperiod of at least 6 months.
　　the employer will release the retention money and/or bank guarantee to the contractor upon completion of the work under this contract.
　　the contractor shall pay to all workmen employed by him， wages at the rate and on the schedule agreed upon. in case of failure of payment of wages to the workmen， the employer shall make direct payments to the contractor's workmen and shall treat such payments as those by the contractor.
　　34.　remedies and powers on default by contractor
　　if the contractor shall become bankrupt， or have a receiving order made against him， or shall present his petition in bankrupt - cy， or shall make an arrangement with or assignment in favor of his creditors， or shall agree to carry out the contract under a committee of inspection of his creditors or， being a corporation，shall go into liquidation （other than a voluntary liquidation for the purposes of amalgamation or reconstruction）， or if the con- tractor shall assign the contract， without the consent in writingof the employer first obtained， or shall have an execution leviedon his goods， or if in his opinion the contractor: